SOLUTIONS TO FORM FOUR SERIES ONE WEEKLY QUESTIONS:
(a) Three significant figures 300.0
(b) Three decimal places 300.326
Rationalization of the denominator
QN4 (a) solution
Table of values for the function
(b) The domain and ranges for the relation are such that
|Marks||Class Marks(x)||Frequency (f)||f.x||Cumulative Frequency|
(a)Histogram and Frequency Polygon see figure 1.
(b) The modal class refers to the class with the highest frequency which in this case is 40-49.
(d) Calculating the median
But before anything you should find the median class by calculating the middle term of the cumulative frequency which is usually the number which is equal to the half of the total of frequency or just above.
Which in this case 102/2 = 51
So we choose the class with a cumulative frequency of 60.
Hence the median class is 50-59
Histogram and Frequency Polygon